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      <h1 class="post-title">快速SSH连接工具（自用）</h1>

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        <span class="post-time"> 2018-03-08 </span>
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        <span class="more-meta"> 约 782 字 </span>
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<li><a href="#原因">原因</a></li>
<li><a href="#折腾">折腾</a>
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<li><a href="#准备">准备</a></li>
<li><a href="#前期规划">前期规划</a></li>
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      <p>使用go语言编写的SSH连接管理工具</p>

<h1 id="原因">原因</h1>

<p>之前一直使用XShell作为SSH远程连接工具，但它只对家庭和学生免费使用，如果要在工作中使用是需要收费的。而且最近公司对这一块查得比较严，因此只能找一下替代软件。</p>

<p>第一个想到的就是putty，但却有个不可接受的缺点：无法保存连接信息，每次都需要手动输入用户名和密码。在此说明一下本人的使用场景：部门中大约有七八台测试服务器，偶尔需要登录其中的某一台进去查看一下应用日志获取服务器状态，对于一台服务器，可能几个星期都不去登录。在此场景下，有可能登录输入用户名密码的时间比实际使用的时间还长，这是无法忍受的。（虽然可以配置密钥登录，但觉得在公司服务器上加点自己的东西很别扭）</p>

<h1 id="折腾">折腾</h1>

<h2 id="准备">准备</h2>

<p>几番对比之后，本人选择了在Windows中安装Ubuntu子系统，配合open-wsl终端工具满足ssh连接的需求。但问题还是没有解决，所以动手写了个可以管理ssh session的小工具，供自己使用。</p>

<h2 id="前期规划">前期规划</h2>

<p>起初想直接使用bash脚本实现，但奈何底子太差放弃了。然后果断选择了用go实现（因为一直想用go写点东西）。</p>

<p>选择完语言后，先做个前期规划，希望实现的效果如下：</p>

<pre><code class="language-bash">sshs alias # 登录
sshs add alias -i ip -p port -u username -w password # 添加
sshs rm alias # 删除
sshs ls [alias] # 查看（支持模糊匹配）
</code></pre>

<p>接着考虑数据存储格式，选用yaml格式：</p>

<pre><code class="language-yaml">alias1:
  ip: &quot;192.168.123.123&quot;
  port: 22
  username: &quot;root&quot;
  password: &quot;123456&quot;
</code></pre>

<p>文件路径：<code>~/.sshs.yml</code>。</p>

<h2 id="代码实现">代码实现</h2>

<p>需要实现的功能主要包括：解析yaml文件管理（增删查）ssh session、ssh连接远程主机。其中解析yaml使用<code>gopkg.in/yaml.v2</code>实现，ssh连接使用<code>golang.org/x/crypto/ssh</code>实现。另外，由于go标准库中的flags包不支持sub commend，所以使用了<code>gopkg.in/urfave/cli.v1</code>实现命令解析功能。</p>

<p>最后，附上源码地址<a href="https://github.com/MACDfree/sshs">sshs-ssh连接管理工具</a></p>
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